/*
 * Copyright (C) 2010 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.oscar.ehome.provider.zxing.client.android.decode;

import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;

import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.PlanarYUVLuminanceSource;
import com.google.zxing.Result;
import com.google.zxing.common.HybridBinarizer;
import com.oscar.ehome.R;
import com.oscar.ehome.provider.zxing.client.android.result.IdCardIdentify;
import com.oscar.ehome.utils.util.CommonUtils;
import com.oscar.ehome.utils.util.ToastUtil;
import com.oscar.ehome.view.loginview.CaptureActivity;

import java.util.Map;

final class DecodeHandler extends Handler {

    private static final String TAG = DecodeHandler.class.getSimpleName();

    private final CaptureActivity activity;
    private final MultiFormatReader multiFormatReader;
    private boolean running = true;
    private String scan_type;
    String result = null;

    DecodeHandler(CaptureActivity activity, Map<DecodeHintType, Object> hints, String scan_type) {
        multiFormatReader = new MultiFormatReader();
        multiFormatReader.setHints(hints);
        this.activity = activity;
        this.scan_type = scan_type;
    }

    @Override
    public void handleMessage(Message message) {
        if (!running) {
            return;
        }
        int what = message.what;
        if (what == R.id.decode) {
            decode((byte[]) message.obj, message.arg1, message.arg2);
        } else if (what == R.id.quit) {
            Looper.myLooper().quit();
        }
    }

    /**
     * Decode the data within the viewfinder rectangle, and time how long it took. For efficiency, reuse the same reader objects from one decode to the next.
     *
     * @param data   The YUV preview frame.
     * @param width  The width of the preview frame.
     * @param height The height of the preview frame.
     */
    private void decode(byte[] data, int width, int height) {
        Result rawResult = null;
        byte[] rotatedData = new byte[data.length];
        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++)
                rotatedData[x * height + height - y - 1] = data[x + y * width];
        }
        int tmp = width;
        width = height;
        height = tmp;

        data = rotatedData;
        Handler handler = activity.getHandler();
        PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height, scan_type);
        if (source != null) {
            BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
            if (CommonUtils.isIdcard == 1) {//扫描身份证
                if (!CommonUtils.isFirst && CommonUtils.idcard == 1) {//如果是身份证的话就返回去进行请求
                    Bitmap bit = toBitmap(source, source.renderCroppedGreyscaleBitmap());
                    CommonUtils.idcard = 0;
                    result = "身份证";
                    IdCardIdentify.saveBitmap(CommonUtils.bitmap, "idCardImg");
                }
            } else if (CommonUtils.isIdcard == 2) {//扫描二维码
                try {
                    rawResult = multiFormatReader.decodeWithState(bitmap);
                    result = "二维码";
                } catch (NotFoundException e) {
                    e.printStackTrace();
                }
            }
        }

        if (rawResult != null || result != null) {
            if (handler != null) {
                if (result.equals("身份证")) {
                    Bundle bundle = new Bundle();
                    Message message = Message.obtain(handler, R.id.decode_succeeded, result); //解析身份证的相关信息返回
                    message.setData(bundle);
                    message.sendToTarget();
                } else if (result.equals("二维码")) {
                    Bundle bundle = new Bundle();
                    Message message = Message.obtain(handler, R.id.decode_succeeded, rawResult); //解析的相关信息返回
                    Bitmap grayscaleBitmap = toBitmap(source, source.renderCroppedGreyscaleBitmap());  //相机捕捉到图像返回
                    bundle.putParcelable(DecodeThread.BARCODE_BITMAP, grayscaleBitmap);
                    message.setData(bundle);
                    message.sendToTarget();
                }
            }
        } else {
            if (handler != null) {
                Message message = Message.obtain(handler, R.id.decode_failed);
                message.sendToTarget();
            }
        }
    }


    private static Bitmap toBitmap(LuminanceSource source, int[] pixels) {
        int width = source.getWidth();
        int height = source.getHeight();
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    }


}
